Finding the Third Proportional to 1,189,964 and 1,812,838

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,964 : 1,812,838 = 1,812,838 : x
2. Step 2: Convert to fraction form
   1,189,964/1,812,838 = 1,812,838/x
3. Step 3: Cross multiply
   1,189,964x = 1,812,838 × 1,812,838
4. Step 4: Simplify right side
   1,189,964x = 3,286,381,614,244
5. Step 5: Solve for x
   x = 3,286,381,614,244/1,189,964
6. Step 6: Final answer
   x = 2,761,748.77